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融合教育背景下高等特殊教育督导评价体系探索

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广州城市职业学院学报 2024年第2期18卷 95-100页

作者：李艳霞广州城市职业学院特殊教育学院广东广州510405

在普通高等学校内开办高等特殊教育,为保证融合教育理念有效落实,需要构建与特殊教育相适应的质量保证体系。高等特殊教育质量发展面临着缺乏特殊教育办学质量标准、缺乏特殊教育课程质量评价标准、特殊教育课堂教学质量标准不清晰等问... 详细信息

在普通高等学校内开办高等特殊教育,为保证融合教育理念有效落实,需要构建与特殊教育相适应的质量保证体系。高等特殊教育质量发展面临着缺乏特殊教育办学质量标准、缺乏特殊教育课程质量评价标准、特殊教育课堂教学质量标准不清晰等问题。高校特教督导应肩负起制定与监督提升特殊教育质量的相关政策、促进特殊教育资源优化配置、构建特殊教育课堂质量标准和评价体系的任务。融合教育背景下特教督导评价体系构建应从以下方面着手:构建明确的评价目标;构建高等特殊教育课堂质量评价标准;构建多样化的特教督导评价方式。

关键词：高等学校特殊教育教学督导质量评价

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论增进调查问卷研究效度之新策略

苏州大学学报（教育科学版） 2024年第1期12卷 46-57页

作者：李夏妍胡中锋王阳广东金融学院公共管理学院广东广州510521 华南师范大学基础教育学院/粤港澳大湾区教育与社会融合研究中心广东汕尾516625

问卷研究效度是指问卷所获得的资料达成研究目的之程度。问卷的试测效度和问卷的测量效度是表达问卷研究效度的两个指标。以长期从事问卷研制的实践经验为基础,探索增进问卷研究效度之新策略:“目标树建构—题目导出与问卷研制—试测操... 详细信息

问卷研究效度是指问卷所获得的资料达成研究目的之程度。问卷的试测效度和问卷的测量效度是表达问卷研究效度的两个指标。以长期从事问卷研制的实践经验为基础,探索增进问卷研究效度之新策略:“目标树建构—题目导出与问卷研制—试测操控—反馈评估与对标修改”。(1)根据研究目的建构概念分析的目标树和溯因分析的目标树。(2)从目标树的末级目标导出问卷题目,结合被调查者的特点编撰题干和选项,自编与借用题目相结合。(3)应用实验和准实验效度理论,控制试测样本误差、试测安排的霍桑效应、区域文化差异、历史事件、情境污染等无关变量对问卷资料的影响,增进问卷的试测效度。(4)分别运用对标分析法和因素分析法评估问卷资料的内容效度和结构效度,并根据评估结果对标修改问卷题目。

关键词：问卷研究效度目标树试测效度测量效度

软弱土层的连拱隧道超前支护有限元分析及施工控制

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齐齐哈尔大学学报（自然科学版） 2024年第2期40卷 89-94页

作者：李艳霞李欢余沛常州工程职业技术学院建筑工程学院江苏常州213164 中衍设计集团有限公司河南郑州450000 信阳学院土木工程学院河南信阳464000

以江苏某地铁站暗挖换乘通道下穿城市引桥工程为背景,研究连拱隧道穿越软弱土层超前支护施工控制问题,提出连拱隧道超前支护施工控制方法。采用MIDAS-GTS NX建立原始土层和全断面深孔注浆加固+超前小导管支护两种工况下连拱换乘通道的... 详细信息

以江苏某地铁站暗挖换乘通道下穿城市引桥工程为背景,研究连拱隧道穿越软弱土层超前支护施工控制问题,提出连拱隧道超前支护施工控制方法。采用MIDAS-GTS NX建立原始土层和全断面深孔注浆加固+超前小导管支护两种工况下连拱换乘通道的三维实体模型,分析通道开挖施工产生的地表沉降、拱顶沉降及对引桥的影响;根据有限元分析模型,确定连拱隧道超前支护注浆液的类型为AC液体、C液V(水玻璃)∶V(水)=0.6∶0.4,初始压力为0.30~0.75 MPa,终止压力为0.5~1.0 MPa,单位长度的注浆量为0.283 m^(3)。研究结果表明,注浆试验段开挖施工完成后,地表沉降最大值为5.57 mm,小于设计要求的沉降控制值10 mm,超前支护效果良好,能够有效提高连拱隧道加固效果。

关键词：连拱隧道软弱土层超前支护施工控制

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Sharp Bounds on the A_(α)-index of Graphs in Terms of the Independence Number

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Acta Mathematicae Applicatae Sinica 2023年第3期39卷 656-674页

作者： Wan-ting SUN li-xia yan Shu-chao li Xue-chao li Faculty of Mathematics and Statistics Central China Normal UniversityWuhan 430079China School of Information Eigeneering Wuhan Business UniversityWuhan 430056China The University of Georgia AthensGA 30602United States

Given a graph G,the adjacency matrix and degree diagonal matrix of G are denoted by A(G)and D(G),*** 2017,Nikiforov~([24])proposed the A_(α)-matrix:A_α(G)=αD(G)+(1-α)A(G),whereα∈[0,1].The largest eigenvalue of this novel matrix is called the A_(α)-index of *** this paper,we characterize the graphs with minimum A_(α)-index among n-vertex graphs with independence number i forα∈[0,1),where i=1,[n/2],[n/2],[n/2]+1,n-3,n-2,n-1,whereas for i=2 we consider the same problem forα∈[0,3/4].Furthermore,we determine the unique graph(***)on n vertices with given independence number having the maximum A_(α)-index withα∈[0,1),whereas for the n-vertex bipartite graphs with given independence number,we characterize the unique graph having the maximum A_α-index withα∈[1/2,1).

关键词： independence number spectral radius A_(α)-index bipartite graph

屈光性弱视及近视高眼压患者视网膜神经纤维层厚度相关性分析

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中国斜视与小儿眼科杂志 2024年第2期32卷 32+55-57页

作者：任璐潘丹闫利霞林有志任艳竹开封市中心医院开封市眼病医院眼科

目的探讨屈光性弱视及近视高眼压患者视网膜神经纤维层厚度相关性分析。方法选取2021年1月至2022年6月收治的50例屈光性弱视患者分为A组、75例近视患者分为B组及30例屈光性弱视合并近视高眼压的患者分为C组。采用Stratus OCT3000成像... 详细信息

目的探讨屈光性弱视及近视高眼压患者视网膜神经纤维层厚度相关性分析。方法选取2021年1月至2022年6月收治的50例屈光性弱视患者分为A组、75例近视患者分为B组及30例屈光性弱视合并近视高眼压的患者分为C组。采用Stratus OCT3000成像仪进行RNFL厚度检测。结果与A组及近视高眼压组比较,C组患者的RNFL厚度更低(P<0.05)。结论屈光性弱视及近视高眼压患者视网膜神经纤维层厚度变薄,并与眼压及黄斑外环区视网膜厚度相关,通过检测指标水平可为疾病的早期诊断提供帮助。

关键词：屈光性弱视近视高眼压视网膜神经纤维层厚度

经腹部浅表超声及多层螺旋CT对阑尾炎患者的检出率及诊断价值分析

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中国医疗器械信息 2024年第14期30卷 22-24,102页

作者：卢敏儿李燕霞黎兆平曾秀芳东莞常安医院超声科广东东莞523570

目的:探讨经腹部浅表超声及多层螺旋CT对阑尾炎患者的检出率及诊断价值分析。方法:选择2018年1月~2022年4月本院收治的40例阑尾炎患者作为研究对象,对其分别采用腹部浅表超声和多层螺旋CT进行诊断,观察两种方式的诊断准确率、对不同类... 详细信息

目的:探讨经腹部浅表超声及多层螺旋CT对阑尾炎患者的检出率及诊断价值分析。方法:选择2018年1月~2022年4月本院收治的40例阑尾炎患者作为研究对象,对其分别采用腹部浅表超声和多层螺旋CT进行诊断,观察两种方式的诊断准确率、对不同类型阑尾炎检出率、诊断效能和满意度。结果:多层螺旋CT检查的诊断准确率为95.00%,通过腹部浅表超声检查诊断准确率为62.50%,多层螺旋CT诊断率显著高于腹部浅表超声,差异具有统计学意义(P0.05);多层螺旋CT诊断灵敏度高于腹部浅表超声诊断,而特异度低于腹部浅表超声;多层螺旋CT诊断满意度95.00%,高于腹部浅表超声的80.00%,差异具有统计学意义(P<0.05)。结论:腹部浅表超声及多层螺旋CT检查方式均能够对阑尾炎早期具有诊断价值,若腹部浅表超声不能确诊可采用多层螺旋CT检查提高诊断率。

关键词：腹部浅表超声多层螺旋CT 阑尾炎检出率诊断效能

Flow Field Characteristics of Multi-Trophic Artificial Reef Based on Computation Fluid Dynamics

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Journal of Ocean University of China 2024年第2期23卷 317-327页

作者： HUANG Junlin li Jiao li yan GONG Pihai GUAN Changtao xia Xu School of Engineering Ocean University of ChinaQingdao 266100China Yellow Sea Fisheries Research Institute Chinese Academy of Fishery SciencesKey Laboratory of Sustainable Development of Marine FisheriesMinistry of Agriculture and Rural AffairsQingdao Key Laboratory for Marine Fish Breeding and BiotechnologyQingdao 266071China Laboratory for Marine Fisheries Science and Food Production Processes Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266071China

On the basis of computational fluid dynamics,the flow field characteristics of multi-trophic artificial reefs,including the flow field distribution features of a single reef under three different velocities and the effect of spacing between reefs on flow scale and the flow state,were *** indicate upwelling,slow flow,and eddy around a single *** velocity,height,and volume of upwelling in front of a single reef were positively correlated with inflow *** length and volume of slow flow increased with the increase in inflow *** were present both inside and backward,and vorticity was positively correlated with inflow *** between reefs had a minor influence on the maximum velocity and height of *** the increase in space from 0.5 L to 1.5 L(L is the reef lehgth),the length of slow flow in the front and back of the combined reefs increased *** the space was 2.0 L,the length of the slow flow *** four different spaces,eddies were present inside and at the back of each *** maximum vorticity was negatively correlated with space from 0.5 L to 1.5 L,but under 2.0 L space,the maximum vorticity was close to the vorticity of a single reef under the same inflow velocity.

关键词： artificial reef flow field characteristics computation fluid dynamics multi-trophic structure

Selective core-shell doping enabling high performance 4.6 V-liCoO2

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Journal of Energy Chemistry 2024年第8期95卷 684-693页

作者： Yueming xia Jianrui Feng Jinhui li yan li Zhengfeng Zhang xiaoqi Wang Jianli Shao Manling Sui Pengfei yan Beijing Key Laboratory of Microstructure and Property of Solids College of Materials Science & Engineering Beijing University of Technology Petro China Research Institute of Petroleum Exploration & Development State Key Laboratory of Explosion Science and Technology Beijing Institute of Technology

Constructing robust surface and bulk structure is the prerequisite for realizing high performance high voltage liCoO2（LCO）.Herein,we manage to synthesize a surface Mg-doping and bulk Al-doping coreshell structured LCO,which demonstrates excellent cycling ***-cell shows 94.2% capacity retention after 100 cycles at 3.0-4.6 V（***/li+） cycling,and no capacity decay after 300 cycles for fullcell test（3.0-4.55 V）.Based on comprehensive microanalysis and theoretical calculations,the degradation mechanisms and doping effects are systematically *** the undoped LCO,high voltage cycling induces severe interfacial and bulk degradations,where cracks,stripe defects,fatigue H2 phase,and spinel phase are identified in grain *** the doped LCO,Mg-doped surface shell can suppress the interfacial degradations,which not only stabilizes the surface structure by forming a thin rock-salt layer but also significantly improves the electronic conductivity,thus enabling superior rate *** Al-doping can suppress the lattice "breathing" effect and the detrimental H3 to H1-3 phase transition,which minimizes the internal strain and defects growth,maintaining the layered structure after prolonged *** theoretical calculations,this work deepens our understanding of the doping effects of Mg and Al,which is valuable in guiding the future material design of high voltage LCO.

关键词： Doping effect Electron microscopy Failure mechanism High-voltage liCoO2 lithium-ion battery

“Buckets effect”in the kinetics of electrocatalytic reactions

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Journal of Energy Chemistry 2024年第2期89卷 388-396,I0010页

作者： Haowen Cui yan-xia Chen Hefei National Laboratory for Physical Sciences at Microscale Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei 230026AnhuiChina

In this study,we systematically investigated the effect of proton concentration on the kinetics of the oxygen reduction reaction(ORR)on Pt(111)in acidic *** results demonstrate a rectangular hyperbolic relationship,i.e.,the ORR current excluding the effect of other variables increases with proton concentration and then tends to a constant *** consider that this is caused by the limitation of ORR kinetics by the trace oxygen concentration in the solution,which determines the upper limit of ORR kinetics.A model of effective concentration is further proposed for rectangular hyperbolic relationships:when the reactant concentration is high enough to reach a critical saturation concentration,the effective reactant concentration will become a constant *** could be due to the limited concentration of a certain reactant for reactions involving more than one reactant or the limited number of active sites available on the *** study provides new insights into the kinetics of electrocatalytic reactions,and it is important for the proper evaluation of catalyst activity and the study of structureperformance relationships.

关键词： Oxygen reduction reaction Kinetics Zero order Rectangular hyperbolic relationship pH effect